Transmission



June 28 192'?. n 1,633,989

R. G. JONES TRANSMISSION Filed Dec. 5. 1925 2 sheets-sheet 2 H7701? EY Patented .lime '28, i927..

UNITED STATES' RICHARD GIRARD JONES, 0F EYNES, CALIFORNIA.

l 'rmsurssroim Application illedl December 5, 1925. Serial No. 73,378.

My invention relates to a device for transmitting motion from one shaft to another, and embodies a novel transmission which may be used for automobiles or machinery where one shaft is to drive another shaft ata number of different speeds. \Qil It is an object of this invention to provide a transmission in which the drive and driven gears are novelly arranged s o that the transmission occupies but a small space and has a greater number of and larger'range of gear shifts in a given space than is possible in the 'ordinary transmission. l

It is another object of the invention to provide a transmission of this character in which the shifting ofgears is very easy.

It is a further object of the invention to provide a transmission in which the drive and driven gears are placed in circular arrangement so that atransmitter gear may be rotated to engage different Vpairs o f drive and driven ears.

Another o ject of my invention is to provide a transmission of the character mentioned in which the transmitter gear is-enclosed by the drive. and driven members which carry the drive and driven gears.

It is a furtherV object of the invention to provide a transmission of this character in which the transmitter gear is shifted by rotating an arm which indicates the gear ratio of the drive and driven gears being engaged on the dial.

Other objects and advantages of the invention will be made evident hereinafter.

Referring to the drawings in whichv I illustratea preferred embodiment of my invention,

Fi 1 is a section of a transmissionembodying the features of my invention, this view being taken as indicated by the line 1-1 of Fig. 2. Y Fig. 2 is a section through the transmission taken on the line 2-2 of Fig. 1.

Fig. 3 is a. fragmentary section showing back gear means of my invention, this View being taken as indicated by the line 3-3 of Fig. 2.

Fig. 4 is a dia raminatic view illustrating the form of te'et used on certain gears of this invention.

Referring to the drawings, ll-'indicates a drive element in the form of a drive shaft and 12 indicates a' driven element in the form of a driven shaft. The inner ends of 'the drive and driven shafts 11 and 12 are provided with polygonal portions 13 and they extend into a chamber 15 of'a housing 16. The housing-16 is rovided to protect the fparts of the transmission and to carry or lubricating the parts. The housing 16 consists of a lower part 17 and-an upper part `18 which are secured together by cap screws 19 which extend through ianges 2O of the parts 17 and 18. The lower art 17 provides a bearing 21 which rotatab y supports the drive shaft 11, and a bearing which rotatably supports the driven shaft 12. Residing in the chamber 15 is a drive member 25 and a driven member 26. -The drive member 25 has a hub 27 provided with a polygonal cavityl 28 which is adapted to receive the polygonal portion 13 of the drive shaft 11. The driven member 26 has a hub 30 having a polygonal cavity 31 which is adapted to receive the polygonal portion 13 of the driven shaft 12. The driven member 26 has a central ball formation 32 which is locl'red from axial'movement by a collar 35 ,which is secured thereon by a set screw 36,

this set screw being tightened through an opening closed by a threaded plug 37.- The driven shaft`12 is locked from axial movement by a collar 39 which is secured thereon by a set screw '40, this set screw 40 being ad- 'usted through an opening closed yby a threaded plug 41. The ends of the shafts 11 and 12 are held by the collars 35 'and 39 so that they engage the drive and driven members 25 and 26 in order to retain the lball 32 in the socket 33.

The ldrive member 25 provides an annular semi-cylindrical channel 45 and the driven member 26 provides an Vannular semi-cylindrical channel 46. As shown best in Fig.' 1 tho annular semi-cylindrical channels 45 and 46 are spaced adjacent to each other so that outer gears 80 in opposite directions.- The gear supporting members 69 are-turned 1n opposite directions and the transmitter ears are rotated inthe positions shown in full lines in Fig. 1. The transmitter gears 65 are swung into engagement with the next pair of gears which are the drive gear 51 andthe driven gear 57, by further ope-rating the operating aiin 89. The transmitter gear 65 may be swung into engagement with any pair of drive and driven gears by a further swinging of the operating arm 89.

When the driven shaft 12 is to be run in a reverse direction, the back gear means is emplo ed. The transmitter gears 65 are move into neutral position and the operating lever 115 is then moved into the osit-ion indicated b dotted lines 118 of Fig. 2. This causes the ack gears 112 to engagethe ars 54 and 56 as previously mentioned.

his locks the drive and driven members 25 and 26 together, causing them to rot-ate in the same direction. When the transmitter gears are'in engagement, the drive and driven gears are rotated in opposite d1- rections.

The transmission of my invention is so designed that it provides a greater number of gear shifts in a given compacted s ace than can be obtained in the ordinary orm of gear shifts. This is possible because of the circular arrangement of the drive andA driven gears in the annular cylindrical channel 48. Simplicity of operation is a feature of the invention. Both of the transmitters are operated by the operating arm 89, and to shift the gears it is only necessary to Swing this operating arm 89 a short distance. Furthermore, the operating arm may be situated in any convenient position.

l claim as my invention:

1. ln combination: a drive element; a driven element; a drive member secured to said drive element, said drive member having an annular semi-cylindrical channel; a driven member vsecured to vsaid driven element, said driven member having an annular semi-cylindrical channel, said annular semicylindrical channels of said drive and driven members being located so as to form a substantially annular cylindrical channel; drive gears carried by said'drive member within said annular cylindrical channel; driven gears carried by said driven member within said annular cylindrical channel, said drive anddrivengears being arranged in pairs inv said annular cylindrical channel so that a drive gear is placed diametrically opposite each of said driven gears; a transmitter gear situated in said annular cylindrical channel adapted to selectively engage pairs of said drive and driven gears; means for moving said transmitter ear into engagement wit any pair of sai drive and driven ears; guides extending into said annular cy ndrian. annular semi-cylindrical channel; a driven member secured to said driven elei ment, said'driven member having an annular semi-cylindrical channel, said annular semicylindrical channels of said drive and driven members being located so as to form a substantially annular cylindrical. channel; drive drive element; a 1' -driven element; a drive member secured to said drive elementsa1d drive member having gears carried by said drive member within l said annular cylindrical channel; driven gears carried by said driven member within said annular cylindrical channel, said drive and driven gears being arranged in pairs in said annular cylindrical channel so that a drive ear is laced diametrically opposite each o said driven` gears; a transmitter gear situated in said annular. cylindrical channel adapted to selectively engagev pairs of said drive and driven gears; a gear sup orting member for rotata ly supporting said) mittel' gear, a shaft of said gear supportin member extending to the exterior of sai annular cylindrical channel between said drive and driven members; means for turnably supporting said gear supportingmember; means forturning said gear supporting member; guides extending into said annular cylindrical channel; a bracket slidable on said guides; back gear means carried b said bracket, said back gear means being a apted to engage adjacent drive and driven gears; and means for bringing said back gear means into engagement position.

3. In combination: a drive element; a

driven element; a drive member secured to said drive element, said drive member having an annular semi-cylindrical channel; a driven member secured to said driven element, said driven member having any annular transl ies ill)

semi-cylindrical channel, saidl annular semi-y cylindrical channels of said drive and driven members being located so as to form a substantiall annular cylindrical channel; individual rive gears carried by said drive member within said annular cylindrical channel; individual driven gears carried by said driven member within said annular cylindrical channel, said drive and driven gears being arranged in pairs in said annu# lar cylindrical channel so that a drive gear isplaced diametrically opposite each of said driven gears; a transmitter gear situated in said annular cylindrical channel adapted to v selectivel engage pairs of said individual drive an driven gears; means for moving,4

said transmitter gear into engagement with any pair of said rive and driven gears, the

4, nesaesa diametri@ iistance between tbe Walls of said drive and driven members bein journalle annular cylindrical channel being grear together by a ball formation o one of said than the diameter o saidiL transmitter gear, members and a socket of the other of said and the space between said individuel drive members in which said ball restsso that said 5 gears and driven gears being sucient to drive and driven members cannot move to- 15 a'ord a neutral position for said transmitter gether beyond certain positions. gear where it may revolve without impart In testimony whereof, I have hereunto set e ing motion to said driven member; and my hand at Los Angeles, California, this vmeans for restraining saiol drive and driven 30th day of November, 1925.

l0 members from relative axial movement, said RICHARD GIRARD JONES. 

